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physical science > Chap 12 > Flashcards

Chap 12 Flashcards

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Biology 101 flashcards
0
Q

A carrier wave is what?

A

Carrier wave is used for specific frequency used by radio stations

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1
Q

Electromagnetic wave spectrum

A 
Radio wave
Microwave
Infrared waves
Visible light
Ultra violet 
X-rays 
Gamma rays
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2
Q

Types of carrier waves

A

AM&PM

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3
Q

AM signals send the info about the photo

TRU OR NAH

A

TRU

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4
Q

FM Signals send the audio

TRue or nah

A

True

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5
Q

What is fm radio

A

Frequency modulation

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6
Q

AM stands for

A

Amplitude modulation

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7
Q

What colors does a cathode ray tube use to form a image

A

Red blue green

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8
Q

This object has 3 electron beams that form the image you see

A

A cathode ray tube

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9
Q

Gamma rays are known for what?

A

Being the most dangerous and is produced by the processes occurring in atomic nuclei

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10
Q

Ultraviolet waves are known for ?

A

Causing sun damage

Is used in forensics to detect finger prints and body fluids

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11
Q

X-rays are use to take pictures of bones &coffee internal organs

A

True

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12
Q

This wave is used to control remotes,CDs, and detecting thermal energy

A

Infrared waves

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13
Q

This is the only electromagnetic waves human can see

A

Visible light

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14
Q

What waves are used in telephones

A

Radio waves and microwaves

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15
Q

What is the name for the energy carried by electromagnetic waves

A

RADIANT ENERGY

16
Q

What is Tge speed of E.wave

A

300,000 km/s

17
Q

When is the electromagnetic waves travel the slowest

A

When it is going through a solid

18
Q

What are e.waves known to behave as

A

Photons

19
Q

Simple characteristics of an electromagnetic wave ?

A

1All objects admit electromagnetic waves
2E.waves travel by transferring energy b/w vibrating electric &magnetic fields
3Can travel through empty space

20
Q

Microwaves are used in

A

Some communication devices

And microwave ovens

21
Q

How does the electromagnetic spectrum increase by

A

It increases by frequency

22
Q

Radio waves are in what tech

A

MRI’s
Radios
Radar guns

physical science (10 decks)

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